Marche funèbre In C Minor, Op. 72,2

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF059902430
CopyrightID (CopyrightChains transaction hash)
0xbb269338437b2ae36a0299a50493f9183c20a2e908143ce4c9561570c3c4eedc
Copyright registration time
2026-07-06T19:06:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c257310f1c57b770bcab96df8e811051eb75ef75580d87583567887f6af07457

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.